Question

Запишіть у вигляді многочлена вираз:

1)(x^3-2y)(x^3+2y)
2)(3y-4y^2)(3y+1y^2)
3)(5b-3ac)(3ac+5b)
4) (-4m^2n+n^3)(-4m^2n-n^3)
5) (7x^2y^2+6xy)(-7x^2y^2+6xy)
6) (9a^4-5b^3c)(5b^3c+9a^4)
7) (-2y^5z^2-3y^3z^4)(-2y^5z^2-3y^3z^4)
8) (-0,3x^3+2yx)(0,3x^3+2yx)
9) (-1,5a^2+4ab^3)(-1,5a^2-4ab^3)
плиз

Answer 1

1.2x^6+2x^3y-2x^3y-4y^2=2x^6-4y^2
2.9y^2+3y^3-12y^3-4y^4=9y^2-9y^3-4y^4
3.25b^2-9a^2c^2
4.16m^4n-2n^6
5.-14x^4y^4+12x^2y^2
6.81a^8-25b^6c^2
7.4y^10z^4+6y^3z^8
8.0.9x^6+4x^2y^2
9.2.25a^4-16a^2b^6